Owing to their properties and low specific weight, Acrylic products are considered as a substitute for wool and used in the production of machine-made carpets, blankets, winter clothing, and thick knits.
In terms of polymer structure, acrylic fibers are referred to as fibers whose polymer chain contains at least 85% by weight of acrylonitrile comonomer. Similar to acrylic fours are modacrylic fibers, which include a maximum of 85% and a minimum of 35% by weight of acrylonitrile comonomer.